没有伦理的科学就像没有指南针的船。
Science without ethics is like a ship without a compass.
预测未来的最好方法就是创造未来。
The best way to predict the future is to create it.
Success is 1% inspiration and 99% perspiration.
Never think that war, no matter how necessary, nor how justified, is not a crime.
El silencio es a veces la mejor respuesta.
南开校训，意为培养公正与能力兼备的人才，追求不断创新。
Don't stop believing, unless your dream sucks.